20 principal data engineer jobs found in London, greater london

Data Architect / Principal Data Engineer (GCP) Contract: Initial 3 Months Location: Fully Remote Status: Outside IR35 We are looking for a highly experienced Data Architect / Principal Data Engineer with deep, hands-on GCP expertise to support a major data transformation programme within a regulated financial services environment. This is not an advisory role. We need someone who has personally designed, built and owned enterprise-scale GCP data platforms in production and can lead both architecture and delivery. Key Requirements 7+ years' hands-on experience with Google Cloud Platform (GCP) Proven experience designing and building production-grade data platforms using: BigQuery Dataflow Pub/Sub Python APIs and containerised services Strong data architecture experience, including conceptual, logical and physical data modelling Experience establishing governance frameworks, metadata management, data quality...

Data Architect / Principal Data Engineer (GCP) Contract: Initial 3 Months Location: Fully Remote Status: Outside IR35 We are looking for a highly experienced Data Architect / Principal Data Engineer with deep, hands-on GCP expertise to support a major data transformation programme within a regulated financial services environment. This is not an advisory role. We need someone who has personally designed, built and owned enterprise-scale GCP data platforms in production and can lead both architecture and delivery. Key Requirements 7+ years' hands-on experience with Google Cloud Platform (GCP) Proven experience designing and building production-grade data platforms using: BigQuery Dataflow Pub/Sub Python APIs and containerised services Strong data architecture experience, including conceptual, logical and physical data modelling Experience establishing governance frameworks, metadata management, data quality...

About Keyrus Keyrus is a global consulting and technology company focused on making data matter — truly matter — from a human perspective . Founded in 1996, Keyrus operates in 28+ countries across 5 continents , with more than 3,300 people worldwide . Our strength comes from combining deep expertise in Data & Analytics, AI, Digital, and Management Consulting with a strong understanding of business realities. Data is never the goal in itself. We use data to shape understanding, design meaningful experiences, and enable better, real-life decisions . At Keyrus, we also believe companies have a responsibility beyond performance. Through our Foundation and ESG initiatives , we actively contribute to sustainability, inclusion, and positive societal impact. #OneTeamOneKeyrus The Role As an AI Solutions Architect , you will work at the intersection of artificial intelligence, data engineering, and business problem-solving , helping transform how...

Role: Solution Architect / Systems Architect / Principal Engineer   Domain: Banking / FinTech Distributed Systems Integration & Data   Role Purpose   Lead architecture design and delivery across a complex, highly integrated banking ecosystem. Design scalable, resilient, and compliant systems while working closely with business, product, and engineering. Operate across all levels - from deep technical design to enterprise architecture - ensuring outcomes are delivered in a fast-paced, high-pressure environment. Able to iterate designs quickly as requirements evolve or more details are provided.  Core Responsibilities   Architecture & Design   Own end-to-end architecture across distributed, event-driven, and integration-heavy systems.  Design at multiple levels: components, services, APIs, data models, and system interactions .  Define solutions covering data processing, storage, replication, and consistency models .  Lead data lifecycle design ,...

We are currently looking for an experience Principal Engineer to join us on a contract basis. This is a hybrid position and will require 3 days per week on client site in Central London. Requirements Role responsibilities: Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features Partner closely with Product, Data Science, and Design to deliver customer-centric solutions Lead and influence technical decision-making across multiple teams and platforms Mentor and support senior engineers, helping to raise the overall engineering capability Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancemen Who you are: An experienced technical leader with a strong background in Java/Python and large-scale production systems Strong...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible! What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good judgment,...

We are currently looking for an experience Principal Engineer to join us on a contract basis. This is a hybrid position and will require 3 days per week on client site in Central London. Role responsibilities: Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features Partner closely with Product, Data Science, and Design to deliver customer-centric solutions Lead and influence technical decision-making across multiple teams and platforms Mentor and support senior engineers, helping to raise the overall engineering capability Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancemen Who you are: An experienced technical leader with a strong background in Java/Python and large-scale production systems Strong experience working with Machine...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...

Principal AI/ML Architect (m/f/d) We are seeking a Principal AI Architect to provide advanced technical leadership and strategic direction in the design and implementation of enterprise-class platforms for AI/ML. This role acts as a bridge between business strategy and technical execution and enables the development of AI capabilities through cloud-native infrastructure design, workflow automation, and the operationalization of AI/ML models using modern MLOps practices. The successful candidate will work closely with executives and cross-functional technical teams to deliver scalable, compliant, and high-performing AI solutions. Your tasks Drive the organization's AI/ML architecture strategy, frameworks, and best practices Develop roadmaps for AI initiatives aligned with business objectives and future technology direction Evaluate emerging AI/ML technologies, platforms, and cloud services to recommend adoption where appropriate Architect scalable, secure, and...

This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future of sovereign security, we want to talk...

We are seeking a dynamic and experienced leader to drive the execution and refinement of our client's personalisation-led growth initiatives . The Personalisation Lead will be responsible for translating overarching optimisation strategies into impactful personalisation programs , cultivating a culture of delivering relevant, tailored experiences , and ensuring measurable business impact through a systematic, data-driven approach focused exclusively on personalisation. This role will operate with a high degree of granularity, directly implementing and optimising the personalisation framework defined by the Optimisation Principal. What you'll be doing: Lead for Global Personalisation Activities: Serve as the lead for all global personalisation activities, overseeing daily operations and tactical direction for the client's personalisation roadmap. Develop a deep understanding of the client's business landscape and challenges to identify and drive high-impact,...

Role overview The Principal Data Scientist will lead significant data science work across AWTG and client programmes, shaping technical direction, standards and delivery approaches. The role requires deep expertise in data science, strong leadership and the ability to turn advanced analytics into organisational impact. You will work with multidisciplinary teams across data, AI, software engineering, product, QA and delivery to create practical outcomes for clients and end users. Key responsibilities Lead the scoping, design and delivery of complex data science products, models and analytical solutions. Set standards for modelling, validation, reproducibility, coding, documentation and responsible AI practices. Identify opportunities to apply machine learning, predictive analytics, optimisation or advanced statistics to business challenges. Guide data scientists, analysts and engineers in selecting appropriate methods, architectures and tools. Influence...

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews. Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from each other; we work really hard...

We are seeking a dynamic and experienced leader to drive the execution and refinement of our client's personalisation-led growth initiatives . The Personalisation Lead will be responsible for translating overarching optimisation strategies into impactful personalisation programs , cultivating a culture of delivering relevant, tailored experiences , and ensuring measurable business impact through a systematic, data-driven approach focused exclusively on personalisation. This role will operate with a high degree of granularity, directly implementing and optimising the personalisation framework defined by the Optimisation Principal. What you'll be doing: Lead for Global Personalisation Activities: Serve as the lead for all global personalisation activities, overseeing daily operations and tactical direction for the client's personalisation roadmap. Develop a deep understanding of the client's business landscape and challenges to identify and drive high-impact,...

Role overview The Principal Data Scientist will lead significant data science work across AWTG and client programmes, shaping technical direction, standards and delivery approaches. The role requires deep expertise in data science, strong leadership and the ability to turn advanced analytics into organisational impact. You will work with multidisciplinary teams across data, AI, software engineering, product, QA and delivery to create practical outcomes for clients and end users. Key responsibilities Lead the scoping, design and delivery of complex data science products, models and analytical solutions. Set standards for modelling, validation, reproducibility, coding, documentation and responsible AI practices. Identify opportunities to apply machine learning, predictive analytics, optimisation or advanced statistics to business challenges. Guide data scientists, analysts and engineers in selecting appropriate methods, architectures and tools. Influence...

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews. Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from each other; we work really hard...

Job Description Who we’re looking for We are looking for an experienced Snowflake Platform Engineer to join our Data Platform team. In this role you will be responsible for the day-to-day operation, security, and evolution of our Snowflake data platform. You will ensure the platform remains secure, performant, and available to data consumers across the business, while partnering closely with data engineering, analytics, and security teams. This is a hands-on technical role that requires deep Snowflake expertise combined with a strong appreciation for governance, access control, and cloud infrastructure. You will act as the subject-matter expert for all things Snowflake and be a key point of contact for platform-related queries, incidents, and strategic decisions. Enterprise Data Engineering sits within Global Technology. Our recent focus has been helping Schroders embed ESG data throughout our investment processes as part of the Global Sustainability initiative. While that...

Start date Monday, 22nd June Immediate Interviews 3-month initial contract duration (likely to extend) £ day rate OUTSIDE IR35 2 days / week in office working / 3 days per week remote working.   As a Principal Product Designer, you are a discipline expert. You set the benchmark for quality and best practice. You are passionate about what you do and motivate those around you. You are a strong consultant who can foster positive and trusted relationships with our clients. You're comfortable providing end-to-end product design leadership across a multi-team programme, as well as high-value consulting services to shape a client’s digital product strategy or to develop and launch early product initiatives to prove their value to senior stakeholders. You are a people person and, as a trusted advisor, you develop rapport with your team and clients. You are an integral part of the product team at Red Badger and a client-facing...

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews.   Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from...